angular中的http请求封装
1、新建ts文件（工具类;HttpUtils.Service.ts）
/*** name:http服务* describe:对http请求做统一处理*/
import {Injectable} from '@angular/core';
import {Http, Response} from '@angular/http';
import 'rxjs/add/operator/toPromise';@Injectable()
export class HttpInterceptorService {constructor(private http: Http) {}/*** 统一发送请求* @param params* @returns {Promise<{success: boolean, msg: string}>|Promise}*/public request(params: any): any {// POST请求（参数、返回值类型都是任意类型）if (params['method'] == 'post' || params['method'] == 'POST') {return this.post(params['url'], params['data']);} else { // 其他请求return this.get(params['url'], params['data']);}}/*** get请求* @param url 接口地址* @param params 参数* @returns {Promise|Promise}*/public get(url: string, params: any): any {return this.http.get(url, {search: params}).toPromise().then(this.handleSuccess).catch(res => this.handleError(res));}/*** post请求* @param url 接口地址* @param params 参数* @returns {Promise|Promise}*/public post(url: string, params: any) {return this.http.post(url, params).toPromise().then(this.handleSuccess).catch(res => this.handleError(res));}/*** 处理请求成功* @param res* @returns {{data: (string|null|((node:any)=>any)*/private handleSuccess(res: Response) {let body = res["_body"];// console.log("接口返回的成功信息：" + body)if (body) { // 有数据返回return {data: res.json().data || {}, // 返回内容code: res.json().code || {}, // 返回codemessage: res.json().message || {}, // 返回信息statusText: res.statusText,status: res.status,success: true}} else { // 无数据返回return {data: res.json().data || {}, // 返回内容code: res.json().code || {}, // 返回codemessage: res.json().message || {}, // 返回信息statusText: res.statusText,status: res.status,success: true}}}/*** 处理请求错误* @param error* @returns {void|Promise|Promise|any}*/private handleError(error) {console.log(error);let msg = '请求失败';if (error.status == 400) {console.log('请求参数正确');}if (error.status == 404) {console.error('请检查路径是否正确');}if (error.status == 500) {console.error('请求的服务器错误');}console.log(error);return {success: false, msg: msg};}
}
/*** name:登录服务* describe:请输入描述*/
import {Injectable} from '@angular/core';
import {HttpInterceptorService} from '../utils/HttpUtils.Service'@Injectable()
export class LoginService {constructor(private httpInterceptorService: HttpInterceptorService) {}/*** 登陆功能* @param params* @returns {Promise<{}>}*/login(username: string, password: string) {return this.httpInterceptorService.request({method: 'POST',url: 'http://localhost:8080/ailschn_community/login/userLogin', // 登录URLdata: {userNickname: username,userPassword: password},});}/*** 注册* @param user* @returns {any}*/reguster(user: any) {return this.httpInterceptorService.request({method: 'POST',url: 'http://119.232.19.182:8090/reguster',data: {user: user},});}
}
import {Component, OnInit} from '@angular/core';
import {IonicPage, ModalController} from 'ionic-angular';
import {TabsPage} from "../tabs/tabs";
import {LoginService} from './login.service';
import {ActivatedRoute, Params} from '@angular/router';
import {Location} from '@angular/common';
import 'rxjs/add/operator/switchMap';@IonicPage()
@Component({selector: 'page-login',templateUrl: 'login.html',providers: [LoginService]
})
export class LoginPage implements OnInit {private username: string;private userpass: string;private id: number;constructor(public modalCtrl: ModalController, public loginService: LoginService, public route: ActivatedRoute,public location: Location) {// http.post()}ngOnInit() {// let id = this.route.params.subscribe(data=>console.log(data.id));this.route.params.subscribe((data) => this.id = data.id);console.log("路由中传过来的id是：" + this.id);}back() {console.log("点击了返回按钮！")this.location.back();}ionViewDidLoad() {console.log('ionViewDidLoad LoginPage');}/*** 登录*/userLogin(username: HTMLInputElement, password: HTMLInputElement, toggle) {this.username = username.value;this.userpass = password.value;this.loginService.login(this.username, this.userpass).then(result => {console.log("登录接口返回的信息是：" + result);//打印返回的数据if (result.code == 200 && result.data) { // 登录成功// 在这里做判断，路由跳转let modal = this.modalCtrl.create(TabsPage);modal.present();} else { // 登录失败alert(result.message);}});}
}
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